Case for operating stop-cocks for water and gas pipes



(No Model.)

E. 'L. ABBOTT.

CASE FOR OPERATING STOP GOUKS FOR WATER AND GAS PIPES. V

Patented Mar. 11, 1884.

Viz 21 eases UNITED STATES PATENT EVERETT L. ABBOTT, OF SOUTH BEND,INDIANA.

CASE FOR OPERATING STOP-COCKS FOR WATER AND GAS PIPES.

SPECIFICATION forming part of Letters Patent No. 294,749, dated March11, 1884,

I Application filed September 4. 1882. (No model.)

To all whom, it may concern.-

Be it known that I, EVERETT L. ABBOTT, a citizen of the United States,and a resident of South Bend, in the county of St. Joseph and State ofIndiana, have invented a new and useful Improvement in Cases forOperating Stop- Oocks for Gas and \Vater Pipes, of which the followingis afull description, reference being had to the accompanying drawings,in which Figure 1 is an exterior elevation of the case, Fig. 2, a top orplan View of the" cap; Fig. 3, a vertical section of the case,and Figs.4 and 5 end and side views of the wrench. v v

This improvement relates to that class of casesfor cut-off valves of gasand water pipes which may be extended or contracted; and the object isto improve the construction and operation of such cases.

The improvements will be fully hereinafter described, and pointed out inthe claims.

In the drawings, A indicates the lower and exterior section; A, legs orsupports; B, the upper and interior section of the case; 0, cover orcap; D, a spiral swell on the lower section of the casing, in which thegroove is formed E, a wrench having prongs F to operate the cap 0, and anotch, G, to operate the rod a,- H, a plate, stone, or other support forthe lower end of the casing; I, section of a waterpipe; J, cut-off a,rod; 1), interior spiral groove of the section A; 0, pin on the sectionB; d, a flattened and twisted portion of the rod.

The section A is usually made of cast-iron, while the section B is madeof ordinary wrought-iron pipe; but they may both be cast, and, by theuse of special tools for forming the groove in the lower section, theymay also be made of wrought-iron tubing; but I prefer to make the lowersections of cast-iron, and in order to avoid a great weight of metal, Icast them with a spiral swell, D, so as to give them The interiorgroove, 1), may be wholly or partly cast therein, and it is notessential or important that the groove should have the sharp anglesshown, as a semicircular groove would operate well in use. This lowersection, A, is provided with legs or supports A, which rest 77 upon theplate or stone H, and it holds the section sufficiently above the pipe Ito make the connect-ion of the rod a with the valve J accessible and,easy, and as the lower end of the rod a has no guide for sending itupon or connecting it with the valve J, I pin or otherwise fasten therod and valve together, so that the valve itself keeps the l-ower end ofthe rod in position, andthe fastening prevents the rod from being liftedor removed. The upper section is provided with a pin, 0, which pin ismade to fit the groove b sufficient to hold this section in any positionwhich may be desired, and which is within the limit of the groove b. Itis not important that this pin should be made close-fittin g, as withthe roughness of the pin and the groove, and the non-liability of thesection B to rotate, especially after the earth is packed around it, itwill hold the section B up or maintain its position. By thisarrangement-I give the sec tion B a strong support by the use of a largepin, 0, and the pin being large, it is not liable to rust or give waywhen the sections are strongly connected together, however long they mayhave been buried in the earth. The cap 0 is attached to the upper end ofthe section B by a screw-thread in the ordinary manner. As shown, theupper section is not as long as the lower one; but in ordinary practiceit will be considerably longer than the section A. Therod a is forked orprovided with a groove at its lower end, which connects with the valveJ, and its upper end is flattened until it is of a width nearly but notquite equal to the interior diameter of the section B. By twisting thisflattened portion onehalf around, as shown at d, a bearing is formed,which supports the rod in a central position, so that it will always bereached and caught by the wrench or spanner E: It will be understoodthat the rod a is to be of a sufiicient length to be within the sectionB when that is at its highest point.

The operation of this device'will be evident from its construction, andby the described construction and arrangement of the parts an adjustablecovering is provided, and the attached valve-rod held in its centralposition,

so that the rod cannot be removed or misthe spiral groove b,'incombination with the placed by either rust or use. interior section, B,having the pin 0, substan- I do not broadly claim astop-box composedtially as shown and described. of an interior and an exterior cylinder,the 2. The rod (1, having the twist d for keep--1 5 5 former beingvertically adjustable by a pin ing it in a central position, incombination and a screw or spiral thread, as such has herewith thesection B, substantially as described. toiore been done.

\Vhat I claim as new, and desire to secure EVERETT ABBOTT by LettersPatent, is as follows: Vitnesses: 1o 1. The lower section, A, formedwith the FREDERIO IB. WILLIAMS,

exterior spiral swell, D, having in its interior S. MARTIN

